7,8-Dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS 111185-91-2
| CAS No. | 111185-91-2 |
| Molecular Formula | C12H11NO3 |
| Molecular Weight | 217.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 7,8-Dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 111185-91-2), a certified reference material (molecular formula C12H11NO3, MW 217.22 g/mol) for analytical method development and quality control.
The molecular framework of 7,8-Dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (C12H11NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 7,8-Dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H11NO3 |
| Molecular Weight | 217.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Related Dimethyl Standards
- 2,5-dimethyl-1-(pyrimidin-2-yl)-1H-pyrrole-3-carboxylic acid (CAS 1016505-56-8)
- 3-(3,5-Dimethyl-isoxazol-4-yl)-benzoic acid (CAS 1032938-26-3)
- 1,6-Dimethyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid (CAS 104294-32-8)
- 3,5-Dimethyl-1-(pyridin-2-yl)-1H-pyrazole-4-carboxylic acid (CAS 1052552-25-6)
- 6-(3,5-Dimethyl-1h-pyrazol-1-yl)pyridine-3-carboxylic acid (CAS 1052558-30-1)
- 1,3-Dimethyl-2-oxo-1,2-dihydroquinoline-4-carboxylic acid (CAS 1073071-78-9)
- 2,5-Dimethyl-1-(pyrazin-2-yl)-1h-pyrrole-3-carboxylic acid (CAS 1156404-65-7)
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Recommended Standards
- 6-Ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 111185-85-4)
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- Methyl 2-(4-ethoxy-3-methyl-2-oxooxazolidin-5-yl)acetate (CAS 110991-58-7)
- 2-Hydroxy-1-(2-methoxyquinolin-3-yl)ethan-1-one (CAS 1125845-79-5)
- n-Methyl-1-(piperidin-4-yl)methanamine (CAS 126579-26-8)
- 5-(4-Butylphenyl)-5-oxopentanoic acid (CAS 97678-95-0)
- (S)-8-(2-chlorophenyl)-9a-phenyl-9,9a-dihydropyrido[1,2-a]indole-6,10-dione (CAS 2368851-72-1)
- 3,4-Dimethyl-2-((4-methylbenzyl)oxy)benzaldehyde (CAS 1427026-82-1)
- 3-Bromo-4-methylquinolin-2-ol (CAS 37778-22-6)
- 3'-Deoxyadenosine 5’-DiphosphateDiscontinued, see D232038 (CAS 13052-95-4)
- 1-Hexyl-2-(2,3,4-trimethoxystyryl)pyridin-1-ium iodide (CAS 307952-94-9)
- (4-Methyl-5-(methylthio)-4h-1,2,4-triazol-3-yl)methanamine hydrochloride (CAS 1092279-01-0)
- 2-amino-N,3-dimethylbutanamide (CAS 560110-12-5)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
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